Products that work well in the sun and on hot paint surfaces contain large amounts of silicone oils. Silicones oils do not dry out and harden nor do they stick to the paint the way polymers and carnauba wax does.
Maybe I'll give the Adam's Detail Spray a try if it works even better than Meguiar's Final Detail. I just love how cheap the FD is. I can pick up a gallon for $16. FD is great to use at outdoor car shows where I have no control over the sun or heat. Another popular product at car shows that works well in the sun is BeadX but I don't use it as I don't like the owner of the company.
If you have a choice it is always adviseable to wash/wax your vehicle when the surface is cool to the touch and in shade.
Maybe I'll give the Adam's Detail Spray a try if it works even better than Meguiar's Final Detail. I just love how cheap the FD is. I can pick up a gallon for $16. FD is great to use at outdoor car shows where I have no control over the sun or heat. Another popular product at car shows that works well in the sun is BeadX but I don't use it as I don't like the owner of the company.
If you have a choice it is always adviseable to wash/wax your vehicle when the surface is cool to the touch and in shade.